- 1925 to 19291
- 1930 to 19341
- 1935 to 19390
- 1940 to 19442
- 1945 to 19493
- 1950 to 19544
- 1955 to 19593
- 1960 to 19643
- 1965 to 19693
- 1970 to 19743
- 1975 to 19792
- 1980 to 19846
- 19852
The preservation of the Duke University Libraries Digital Collections and the Duke Digital Repository programs are supported in part by the Lowell and Eileen Aptman Digital Preservation Fund